Strange entries in /var/log/messages

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Hi All

Can anyone explain why a machine on 10.0.0.10/24 would try and
communicate with another machine 10.0.0.4/24 via a router?
Mar  1 14:19:37 firefly kernel: DROP FORWARD INTERNAL: IN=eth2 OUT=eth2
SRC=10.0.0.10 DST=10.0.0.4 LEN=48 TOS=0x00 PREC=0x00 TTL=127 ID=17562 DF
PROTO=TCP SPT=4601 DPT=159 WINDOW=64240 RES=0x00 SYN URGP=0
Mar  1 14:19:37 firefly kernel: DROP FORWARD INTERNAL: IN=eth2 OUT=eth2
SRC=10.0.0.10 DST=10.0.0.4 LEN=48 TOS=0x00 PREC=0x00 TTL=127 ID=17563 DF
PROTO=TCP SPT=4602 DPT=158 WINDOW=64240 RES=0x00 SYN URGP=0
Mar  1 14:19:40 firefly kernel: DROP FORWARD INTERNAL: IN=eth2 OUT=eth2
SRC=10.0.0.10 DST=10.0.0.4 LEN=48 TOS=0x00 PREC=0x00 TTL=127 ID=17593 DF
PROTO=TCP SPT=4601 DPT=159 WINDOW=64240 RES=0x00 SYN URGP=0

What is this? Port 158 and 159 apparently belong to
BackupExec/NetBackup. 10.0.0.10 is our backup server, but why does it
try and talk to 10.0.0.4 via the default router?



-- 
--
Raymond Leach <raymondl@xxxxxxxxxxxxxxxxxxxxxx>
Network Support Specialist
http://www.knowledgefactory.co.za
"lynx -source http://www.rchq.co.za/raymondl.asc | gpg --import"
Key fingerprint = 7209 A695 9EE0 E971 A9AD  00EE 8757 EE47 F06F FB28
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